Sheet-registering prong



F. W. M DANIEL SHEET REGISTERING PRONG June 17 1924.

Filed Aug. 5. 1923 Affzvem Patented June 17, 1924.

FLOYD ,lvr nem es, or Agosto, PENNSYLVANIA.

SHEET-REGISTERING BRONG.

ppli a im fil d Ass st 3, 231 Se a 19- 55,439-

To all whom it may concern;

Be it known that I Fnoyo. YV. MjcD w Inn, a citizen of; theUnited States, residing at Apollo, in the county of Armstronga nd S a of nsy a hav nrw ed; e tein new and useful I mprovelnents in. Sheet,- s er ng tq g o h ch h t llo n isa specification.

My invention relates to, reg ister ingw devices for pr n ing pr s es; n w i h r n ce ves ne edge of a h fedfr m a au o at t edine de e pe at to position the sheet. in registration with p on. e press Plet n- Heretetore t hes. been customery to provide a. number of sheet-registering. forks. to, take care. 01:} sheets of d fe nt izes W thi enses city ot p flr P2655 nd t P o de e ldtt one forks for diil e gent grades peper and eer e be n thus ecessary n ca y a complet l e of s e -re s e n ork Mick to; select and; e up the p t k f each job, i

he Pr msny o iest 0 h P en n t n is to p e in S n e she weg ter n p g o the chara ter des r be wh h w serve all purposes Within the ospeei ty of a given press. This result is obteiped; by reason, of; the. novel construction. of my sheet-registering prong, both ssregerds its pte iliyt han ling he te i any thickness or texture and for aoeonemodets any size hee v th n he s ns -iii?- 0f the. press,

I have also aimed to erovide. 2. sheet 36gistering pron-g embodying a. novel, sheetst rring means thete isim Qt whi -sw be. varied to stilt the be d,

Still al iotl ep obj eot is to provide a dec o th h esesdes r bed which 1% b pr d s d: ewe- 122. ewe-y Le we nd ill ser s a wee and: efiidee masses 1 rpose eteededa- 1 116 QlQJfiQ s e s t ndant whee eswill be apprecizited by those skilled in art s t e nreet e beeqiees bet e id t e by ref r nee he llqw ee e cr ies when qn td red c nnecti n. w t t 1 eesompez ry e dr w ngs. wh rls:

' E g te 1 op; i w Q 'e stree -mee sing prong, full size, eni bodying my invent e; 4

Pert 13. o e

Fig. 2; is a View thereof;

Iiig. 3is zrview oi the flexible body strip; anc

Figs. 4L and 5. are enlargedseotiOIls taken substantially, on the lines l fl' and 5:5,, respectively, of Fig. 1

lil improvement while adapted for sheetregistering, devices oi difllerentkinds, es pecially designed fornse on a hililler feeder, this being an, entornetie sheet-teeding, and registering mechanism Well kneyyn. to, the printing trade. sheet-registering prong may be used in place. of thefnsuel. fork. on such feeder, the body or shank of the prong being held by a set screw on registerel e- Inent located on the lower pleten edge of the. press. Y K

Referring more pgn ticulerly' to the drawing, it will be observed that Ihzrve provided e flexible spring. steel body strip. Z o ii s itticient length to. take care o f the inzrzgirnum length reqnii'ementsof a prong of this One end. of this strip. is supported, in end edjnsteble lengthwise with respect to the register element 9,, shown briefiiy in the drawing. This register element is, oscillated automatically in tinred relation; tofthe sheet-feeding mechanism tor. moving the registering prongto, carry the sheet en ,gaged thereby, will be presently described, into the desired position on the press pleten, 11s is well understood in r In p e t ceth tr p 7 may beeewr d means of the. set'sc rew 8 in anyv Position to i h it m y be di s lqe e regist e m t T e stri as 2 heet esns WWW? p e er l P nt d ewn, e l apt n ese & h e trombe iy- The le t i n aged frQm abetby e ste l al er ie pr ng ee ng desi ete l ene a y by 13 ies ly see d; 0n th t ip. 7% Il fie i1e istlle rref e embe me t wi s of a tr p of spr n steel having a flat end 1 L adepted to,

against the top of bodystrip 7 endlbeing sel t eqk ieen its lt t i iiis p ti e' fi i rl iss e s end Parall relati n the t n s ace po n 3 e fi ive ronnkl hol l l theretlirongh, in registration, eeoli of e ameter e this llet f ieel Th be may herefo e; rres d lbn e between the casing portions'l l: end 16. in the the body strip. This means preferably clamps the strips 7 and let together at any of different points throughout a greater portion of the length of the latter so that the tension of .the sheet-engaging portions or members may be varied. In the present instance, this means comprises a clamping yoke 19 and a clamping lever 21, these reference numerals being generally applied. The clamping yokehas a portion 22 under lying the strip 7 and upstanding arms 23 at the sides thereof, and the clamping lever has a. French journal on the arms 22, comprising trunnions 24 fitted in bearing holes 25 in the arms 23, and an eccentric portion 26 adapted to be brought into clamping engagement with the top of the casing strip 14 for clamping the latter to the strip 7 when the lever is moved to the position shown in full lines. Upon swinging the lever in a clockwise direction viewing Fig. 5, it will be obvious that the eccentric portion 26 will be withdrawn from the member 14, thus rcleasing the clamped parts and permitting the yoke 23 to be shifted lengthwise upon and with respect to said clamped parts. It will be manifest that by thus shifting the yoke and clamping it in the newly adjusted position, the pressure of the ball in its contact with a sheet will be in accordance with the tension of the part 14 of the ball casing, which part is in effect a fiat spring, the length .of which is varied by said ad justment. It will be noted that the effective length of this spring may be varied practically from its end 27 to approximately the point 28. When making this adjust ment, the ball casing may likewise be shifter on the strip 7 to position the sheet-engaging portion of the ball in the most effective relation to the sheet-engaging portion 11 of the understrip or tine, according to the size, thickness or texture of the sheet to be moved.

In use, especially on job presses where practically every printing job varies, the registering prong must be properly adjusted and set for each job. By reason of the gripping action of the lower tine and upper ball and of the wide range of tension permitted by the present construction, this prong is adapted to handle sheets of any to the smallest size. In the event that the prong is retracted to such a position that its end remote from the sheet-engaging end projects so that it would interfere with the press rollers and bed, this projecting end may be confined beneath a suitable wire loop or any such confining or retaining part secured to the gripper bar of the press.

In such event, this end of the prong will be curved downwardly, and by reason of its flexibility will slide'baek and forth in its confined position during oscillation of the prong inits registering and return strokes.

In setting the prong, the ball should be positioned well up on the margin of the sheet, just so that the end of the prong clears the type. on the printing stroke. On strictly register and color work, accuracy is attained by sosetting the prong that the ball does not leave the sheet on the end of the stroke. By the use of my invention, a stripper guide as is ordinarily used is not necessary.

It is believed that the foregoing conveys a clear understanding of the objects prefaced above, and it should be understood that while I have illustrated but a single working embodiment, changes may be made in details of construction without departing 2. AI sheet registering prong of the char- 7 aoter described comprising a body strip having a tine at one end shaped to engage a sheet from below, a ball adapted to engage the sheet from above, and means attached to said body strip yieldingly supporting the ball and permitting it to revolve freely in its operative position and being adjustable upon and with respect to said body strip for varying the sheet-contacting pressure of the ball.

- 3. A sheet registering prong of the character described comprising. a flexible body strip adapted at one end to engage a sheet from below, a sheet-engaging ball, a casing for the'ball in the form of a flat spring adapted for 'yieldingly supporting the ball in a position to engage the sheet from above,

and means for holding the ball casing on the body strip and for varying the spring tension.

4. A sheet registering prong of the character described comprising a flexible body strip adapted for attachment and lengthwise adjustment with respect to a register member and having a portion adapted to engage a sheet from below, a sheet-engaging ball, a casing supporting the ball so that it is free to rotate with a portion projecting, and means for securing said casing on said body strip with the projecting portion of the ball engaging the sheet from above and being adjustable for varying the sheet-contacting pressure of the ball.

5. A sheet registering prong of the character described comprising a flexible body strip adapted for attachment and lengthwise adjustment with respect to a register memher and having a portion adapted to engage a sheet from below, a sheet-engaging ball, a casing supporting the ball so that it is free to rotate with a portion projecting, and means for securing said casing on said body strip with the projecting portion of the ball engaging the sheet from above, said means being adjustable for varying the pressure of the ball on the sheet.

6. A sheet registering prong of the character described comprising a flexible body strip adapted to be adjustably secured to a register part and shaped to engage a sheet from below, a sheet-engaging ball, a spring casing in which the ball is free to rotate and from which a sheet-engaging portion of the ball projects, and means for adjustably attaching said casing to the body strip.

7. A sheet registering prong of the character described, comprising a flexible body strip adapted for attachment to a register part and having a portion at one end adapted for engaging a sheet from below, said strip being of suflicient length to per mit adjustment of said registering part to' position said sheet-engaging portion to handle the maximum and minimum sheetdimension and location requirements of a given press, and means on said strip for engaging the sheet from above, the end of the strip remote from its sheet-engaging end. being by reason of its flexibility adapted when the strip is in a retracted position to be confined from interference with, other parts of the press.

8. A sheet registering prong of the character described comprising a body strip adapted at one end to engage a sheet from below, a sheet-engaging ball, a casing for the ball in the form of a flat spring strip bent upon itself at one end to provide sub stantially parallel spaced portions, said portions having registering ball-receiving openings therein in which the ball is supported with a portion projecting and adapted to engage the sheet from above, and means for adjnstably securing said ball casing to the body strip.

9. A sheet registering prongof the character described comprising a body strip adapted at one end to engage a sheet from below, a sheet-engaging ball, a casing for the ball in the form of a flat spring strip bent upon itself at one end to provide substantially parallel spaced portions, said portions having registering ball-receiving openings therein in which the ball is supported with a portion projecting and adapted to engage the sheet from above, a yoke slidable lengthwise on the body strip, and a clamping lever pivoted on the yoke and adapt-ed for clamping the ball casing on the body strip.

FLOYD W. MQDANIEL. 

